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[PATCH] arm/nospec: Make nospec helpers always_inline
- To: <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Alejandro Vallejo <alejandro.garciavallejo@xxxxxxx>
- Date: Tue, 6 Oct 2026 12:31:40 +0200
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- Cc: Alejandro Vallejo <alejandro.garciavallejo@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>
- Delivery-date: Tue, 06 Oct 2026 10:32:11 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
While today they don't implement fencing in a way that would block
speculation, once/if they do they'll absolutely need to be inlined, even
if -fno-inline or -fno-early-inlining are passed.
Signed-off-by: Alejandro Vallejo <alejandro.garciavallejo@xxxxxxx>
---
xen/arch/arm/include/asm/nospec.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/xen/arch/arm/include/asm/nospec.h
b/xen/arch/arm/include/asm/nospec.h
index 51c7aea4f4..b84f8dff45 100644
--- a/xen/arch/arm/include/asm/nospec.h
+++ b/xen/arch/arm/include/asm/nospec.h
@@ -4,12 +4,12 @@
#ifndef _ASM_ARM_NOSPEC_H
#define _ASM_ARM_NOSPEC_H
-static inline bool evaluate_nospec(bool condition)
+static always_inline bool evaluate_nospec(bool condition)
{
return condition;
}
-static inline void block_speculation(void)
+static always_inline void block_speculation(void)
{
}
base-commit: 290959692726bed9a9404fbb151767dba9928c5b
--
2.43.0
|
